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#include "_tri.h"
#include "src/mplutils.h"
#include "src/py_exceptions.h"
/* Triangulation */
typedef struct
{
PyObject_HEAD;
Triangulation* ptr;
} PyTriangulation;
static PyTypeObject PyTriangulationType;
static PyObject* PyTriangulation_new(PyTypeObject* type, PyObject* args, PyObject* kwds)
{
PyTriangulation* self;
self = (PyTriangulation*)type->tp_alloc(type, 0);
self->ptr = NULL;
return (PyObject*)self;
}
const char* PyTriangulation_init__doc__ =
"Triangulation(x, y, triangles, mask, edges, neighbors)\n"
"\n"
"Create a new C++ Triangulation object\n"
"This should not be called directly, instead use the python class\n"
"matplotlib.tri.Triangulation instead.\n";
static int PyTriangulation_init(PyTriangulation* self, PyObject* args, PyObject* kwds)
{
Triangulation::CoordinateArray x, y;
Triangulation::TriangleArray triangles;
Triangulation::MaskArray mask;
Triangulation::EdgeArray edges;
Triangulation::NeighborArray neighbors;
int correct_triangle_orientations;
if (!PyArg_ParseTuple(args,
"O&O&O&O&O&O&i",
&x.converter, &x,
&y.converter, &y,
&triangles.converter, &triangles,
&mask.converter, &mask,
&edges.converter, &edges,
&neighbors.converter, &neighbors,
&correct_triangle_orientations)) {
return -1;
}
// x and y.
if (x.empty() || y.empty() || x.dim(0) != y.dim(0)) {
PyErr_SetString(PyExc_ValueError,
"x and y must be 1D arrays of the same length");
}
// triangles.
if (triangles.empty() || triangles.dim(1) != 3) {
PyErr_SetString(PyExc_ValueError,
"triangles must be a 2D array of shape (?,3)");
}
// Optional mask.
if (!mask.empty() && mask.dim(0) != triangles.dim(0)) {
PyErr_SetString(PyExc_ValueError,
"mask must be a 1D array with the same length as the triangles array");
}
// Optional edges.
if (!edges.empty() && edges.dim(1) != 2) {
PyErr_SetString(PyExc_ValueError,
"edges must be a 2D array with shape (?,2)");
}
// Optional neighbors.
if (!neighbors.empty() && (neighbors.dim(0) != triangles.dim(0) ||
neighbors.dim(1) != triangles.dim(1))) {
PyErr_SetString(PyExc_ValueError,
"neighbors must be a 2D array with the same shape as the triangles array");
}
CALL_CPP_INIT("Triangulation",
(self->ptr = new Triangulation(x, y, triangles, mask,
edges, neighbors,
correct_triangle_orientations)));
return 0;
}
static void PyTriangulation_dealloc(PyTriangulation* self)
{
delete self->ptr;
Py_TYPE(self)->tp_free((PyObject*)self);
}
const char* PyTriangulation_calculate_plane_coefficients__doc__ =
"calculate_plane_coefficients(z, plane_coefficients)\n"
"\n"
"Calculate plane equation coefficients for all unmasked triangles";
static PyObject* PyTriangulation_calculate_plane_coefficients(PyTriangulation* self, PyObject* args, PyObject* kwds)
{
Triangulation::CoordinateArray z;
if (!PyArg_ParseTuple(args, "O&:calculate_plane_coefficients",
&z.converter, &z)) {
return NULL;
}
if (z.empty() || z.dim(0) != self->ptr->get_npoints()) {
PyErr_SetString(PyExc_ValueError,
"z array must have same length as triangulation x and y arrays");
}
Triangulation::TwoCoordinateArray result;
CALL_CPP("calculate_plane_coefficients",
(result = self->ptr->calculate_plane_coefficients(z)));
return result.pyobj();
}
const char* PyTriangulation_get_edges__doc__ =
"get_edges()\n"
"\n"
"Return edges array";
static PyObject* PyTriangulation_get_edges(PyTriangulation* self, PyObject* args, PyObject* kwds)
{
Triangulation::EdgeArray* result;
CALL_CPP("get_edges", (result = &self->ptr->get_edges()));
if (result->empty()) {
Py_RETURN_NONE;
}
else
return result->pyobj();
}
const char* PyTriangulation_get_neighbors__doc__ =
"get_neighbors()\n"
"\n"
"Return neighbors array";
static PyObject* PyTriangulation_get_neighbors(PyTriangulation* self, PyObject* args, PyObject* kwds)
{
Triangulation::NeighborArray* result;
CALL_CPP("get_neighbors", (result = &self->ptr->get_neighbors()));
if (result->empty()) {
Py_RETURN_NONE;
}
else
return result->pyobj();
}
const char* PyTriangulation_set_mask__doc__ =
"set_mask(mask)\n"
"\n"
"Set or clear the mask array.";
static PyObject* PyTriangulation_set_mask(PyTriangulation* self, PyObject* args, PyObject* kwds)
{
Triangulation::MaskArray mask;
if (!PyArg_ParseTuple(args, "O&:set_mask", &mask.converter, &mask)) {
return NULL;
}
if (!mask.empty() && mask.dim(0) != self->ptr->get_ntri()) {
PyErr_SetString(PyExc_ValueError,
"mask must be a 1D array with the same length as the triangles array");
}
CALL_CPP("set_mask", (self->ptr->set_mask(mask)));
Py_RETURN_NONE;
}
static PyTypeObject* PyTriangulation_init_type(PyObject* m, PyTypeObject* type)
{
static PyMethodDef methods[] = {
{"calculate_plane_coefficients", (PyCFunction)PyTriangulation_calculate_plane_coefficients, METH_VARARGS, PyTriangulation_calculate_plane_coefficients__doc__},
{"get_edges", (PyCFunction)PyTriangulation_get_edges, METH_NOARGS, PyTriangulation_get_edges__doc__},
{"get_neighbors", (PyCFunction)PyTriangulation_get_neighbors, METH_NOARGS, PyTriangulation_get_neighbors__doc__},
{"set_mask", (PyCFunction)PyTriangulation_set_mask, METH_VARARGS, PyTriangulation_set_mask__doc__},
{NULL}
};
memset(type, 0, sizeof(PyTypeObject));
type->tp_name = "matplotlib._tri.Triangulation";
type->tp_doc = PyTriangulation_init__doc__;
type->tp_basicsize = sizeof(PyTriangulation);
type->tp_dealloc = (destructor)PyTriangulation_dealloc;
type->tp_flags = Py_TPFLAGS_DEFAULT;
type->tp_methods = methods;
type->tp_new = PyTriangulation_new;
type->tp_init = (initproc)PyTriangulation_init;
if (PyType_Ready(type) < 0) {
return NULL;
}
if (PyModule_AddObject(m, "Triangulation", (PyObject*)type)) {
return NULL;
}
return type;
}
/* TriContourGenerator */
typedef struct
{
PyObject_HEAD;
TriContourGenerator* ptr;
PyTriangulation* py_triangulation;
} PyTriContourGenerator;
static PyTypeObject PyTriContourGeneratorType;
static PyObject* PyTriContourGenerator_new(PyTypeObject* type, PyObject* args, PyObject* kwds)
{
PyTriContourGenerator* self;
self = (PyTriContourGenerator*)type->tp_alloc(type, 0);
self->ptr = NULL;
self->py_triangulation = NULL;
return (PyObject*)self;
}
const char* PyTriContourGenerator_init__doc__ =
"TriContourGenerator(triangulation, z)\n"
"\n"
"Create a new C++ TriContourGenerator object\n"
"This should not be called directly, instead use the functions\n"
"matplotlib.axes.tricontour and tricontourf instead.\n";
static int PyTriContourGenerator_init(PyTriContourGenerator* self, PyObject* args, PyObject* kwds)
{
PyObject* triangulation_arg;
TriContourGenerator::CoordinateArray z;
if (!PyArg_ParseTuple(args, "O!O&",
&PyTriangulationType, &triangulation_arg,
&z.converter, &z)) {
return -1;
}
PyTriangulation* py_triangulation = (PyTriangulation*)triangulation_arg;
Py_INCREF(py_triangulation);
self->py_triangulation = py_triangulation;
Triangulation& triangulation = *(py_triangulation->ptr);
if (z.empty() || z.dim(0) != triangulation.get_npoints()) {
PyErr_SetString(PyExc_ValueError,
"z must be a 1D array with the same length as the x and y arrays");
}
CALL_CPP_INIT("TriContourGenerator",
(self->ptr = new TriContourGenerator(triangulation, z)));
return 0;
}
static void PyTriContourGenerator_dealloc(PyTriContourGenerator* self)
{
delete self->ptr;
Py_XDECREF(self->py_triangulation);
Py_TYPE(self)->tp_free((PyObject *)self);
}
const char* PyTriContourGenerator_create_contour__doc__ =
"create_contour(level)\n"
"\n"
"Create and return a non-filled contour.";
static PyObject* PyTriContourGenerator_create_contour(PyTriContourGenerator* self, PyObject* args, PyObject* kwds)
{
double level;
if (!PyArg_ParseTuple(args, "d:create_contour", &level)) {
return NULL;
}
PyObject* result;
CALL_CPP("create_contour", (result = self->ptr->create_contour(level)));
return result;
}
const char* PyTriContourGenerator_create_filled_contour__doc__ =
"create_filled_contour(lower_level, upper_level)\n"
"\n"
"Create and return a filled contour";
static PyObject* PyTriContourGenerator_create_filled_contour(PyTriContourGenerator* self, PyObject* args, PyObject* kwds)
{
double lower_level, upper_level;
if (!PyArg_ParseTuple(args, "dd:create_filled_contour",
&lower_level, &upper_level)) {
return NULL;
}
PyObject* result;
CALL_CPP("create_filled_contour",
(result = self->ptr->create_filled_contour(lower_level,
upper_level)));
return result;
}
static PyTypeObject* PyTriContourGenerator_init_type(PyObject* m, PyTypeObject* type)
{
static PyMethodDef methods[] = {
{"create_contour", (PyCFunction)PyTriContourGenerator_create_contour, METH_VARARGS, PyTriContourGenerator_create_contour__doc__},
{"create_filled_contour", (PyCFunction)PyTriContourGenerator_create_filled_contour, METH_VARARGS, PyTriContourGenerator_create_filled_contour__doc__},
{NULL}
};
memset(type, 0, sizeof(PyTypeObject));
type->tp_name = "matplotlib._tri.TriContourGenerator";
type->tp_doc = PyTriContourGenerator_init__doc__;
type->tp_basicsize = sizeof(PyTriContourGenerator);
type->tp_dealloc = (destructor)PyTriContourGenerator_dealloc;
type->tp_flags = Py_TPFLAGS_DEFAULT;
type->tp_methods = methods;
type->tp_new = PyTriContourGenerator_new;
type->tp_init = (initproc)PyTriContourGenerator_init;
if (PyType_Ready(type) < 0) {
return NULL;
}
if (PyModule_AddObject(m, "TriContourGenerator", (PyObject*)type)) {
return NULL;
}
return type;
}
/* TrapezoidMapTriFinder */
typedef struct
{
PyObject_HEAD;
TrapezoidMapTriFinder* ptr;
PyTriangulation* py_triangulation;
} PyTrapezoidMapTriFinder;
static PyTypeObject PyTrapezoidMapTriFinderType;
static PyObject* PyTrapezoidMapTriFinder_new(PyTypeObject* type, PyObject* args, PyObject* kwds)
{
PyTrapezoidMapTriFinder* self;
self = (PyTrapezoidMapTriFinder*)type->tp_alloc(type, 0);
self->ptr = NULL;
self->py_triangulation = NULL;
return (PyObject*)self;
}
const char* PyTrapezoidMapTriFinder_init__doc__ =
"TrapezoidMapTriFinder(triangulation)\n"
"\n"
"Create a new C++ TrapezoidMapTriFinder object\n"
"This should not be called directly, instead use the python class\n"
"matplotlib.tri.TrapezoidMapTriFinder instead.\n";
static int PyTrapezoidMapTriFinder_init(PyTrapezoidMapTriFinder* self, PyObject* args, PyObject* kwds)
{
PyObject* triangulation_arg;
if (!PyArg_ParseTuple(args, "O!",
&PyTriangulationType, &triangulation_arg)) {
return -1;
}
PyTriangulation* py_triangulation = (PyTriangulation*)triangulation_arg;
Py_INCREF(py_triangulation);
self->py_triangulation = py_triangulation;
Triangulation& triangulation = *(py_triangulation->ptr);
CALL_CPP_INIT("TrapezoidMapTriFinder",
(self->ptr = new TrapezoidMapTriFinder(triangulation)));
return 0;
}
static void PyTrapezoidMapTriFinder_dealloc(PyTrapezoidMapTriFinder* self)
{
delete self->ptr;
Py_XDECREF(self->py_triangulation);
Py_TYPE(self)->tp_free((PyObject *)self);
}
const char* PyTrapezoidMapTriFinder_find_many__doc__ =
"find_many(x, y)\n"
"\n"
"Find indices of triangles containing the point coordinates (x, y)";
static PyObject* PyTrapezoidMapTriFinder_find_many(PyTrapezoidMapTriFinder* self, PyObject* args, PyObject* kwds)
{
TrapezoidMapTriFinder::CoordinateArray x, y;
if (!PyArg_ParseTuple(args, "O&O&:find_many",
&x.converter, &x,
&y.converter, &y)) {
return NULL;
}
if (x.empty() || y.empty() || x.dim(0) != y.dim(0)) {
PyErr_SetString(PyExc_ValueError,
"x and y must be array_like with same shape");
}
TrapezoidMapTriFinder::TriIndexArray result;
CALL_CPP("find_many", (result = self->ptr->find_many(x, y)));
return result.pyobj();
}
const char* PyTrapezoidMapTriFinder_get_tree_stats__doc__ =
"get_tree_stats()\n"
"\n"
"Return statistics about the tree used by the trapezoid map";
static PyObject* PyTrapezoidMapTriFinder_get_tree_stats(PyTrapezoidMapTriFinder* self, PyObject* args, PyObject* kwds)
{
PyObject* result;
CALL_CPP("get_tree_stats", (result = self->ptr->get_tree_stats()));
return result;
}
const char* PyTrapezoidMapTriFinder_initialize__doc__ =
"initialize()\n"
"\n"
"Initialize this object, creating the trapezoid map from the triangulation";
static PyObject* PyTrapezoidMapTriFinder_initialize(PyTrapezoidMapTriFinder* self, PyObject* args, PyObject* kwds)
{
CALL_CPP("initialize", (self->ptr->initialize()));
Py_RETURN_NONE;
}
const char* PyTrapezoidMapTriFinder_print_tree__doc__ =
"print_tree()\n"
"\n"
"Print the search tree as text to stdout; useful for debug purposes";
static PyObject* PyTrapezoidMapTriFinder_print_tree(PyTrapezoidMapTriFinder* self, PyObject* args, PyObject* kwds)
{
CALL_CPP("print_tree", (self->ptr->print_tree()));
Py_RETURN_NONE;
}
static PyTypeObject* PyTrapezoidMapTriFinder_init_type(PyObject* m, PyTypeObject* type)
{
static PyMethodDef methods[] = {
{"find_many", (PyCFunction)PyTrapezoidMapTriFinder_find_many, METH_VARARGS, PyTrapezoidMapTriFinder_find_many__doc__},
{"get_tree_stats", (PyCFunction)PyTrapezoidMapTriFinder_get_tree_stats, METH_NOARGS, PyTrapezoidMapTriFinder_get_tree_stats__doc__},
{"initialize", (PyCFunction)PyTrapezoidMapTriFinder_initialize, METH_NOARGS, PyTrapezoidMapTriFinder_initialize__doc__},
{"print_tree", (PyCFunction)PyTrapezoidMapTriFinder_print_tree, METH_NOARGS, PyTrapezoidMapTriFinder_print_tree__doc__},
{NULL}
};
memset(type, 0, sizeof(PyTypeObject));
type->tp_name = "matplotlib._tri.TrapezoidMapTriFinder";
type->tp_doc = PyTrapezoidMapTriFinder_init__doc__;
type->tp_basicsize = sizeof(PyTrapezoidMapTriFinder);
type->tp_dealloc = (destructor)PyTrapezoidMapTriFinder_dealloc;
type->tp_flags = Py_TPFLAGS_DEFAULT;
type->tp_methods = methods;
type->tp_new = PyTrapezoidMapTriFinder_new;
type->tp_init = (initproc)PyTrapezoidMapTriFinder_init;
if (PyType_Ready(type) < 0) {
return NULL;
}
if (PyModule_AddObject(m, "TrapezoidMapTriFinder", (PyObject*)type)) {
return NULL;
}
return type;
}
/* Module */
extern "C" {
#if PY3K
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
"_tri",
NULL,
0,
NULL,
NULL,
NULL,
NULL,
NULL
};
#define INITERROR return NULL
PyMODINIT_FUNC PyInit__tri(void)
#else
#define INITERROR return
PyMODINIT_FUNC init_tri(void)
#endif
{
PyObject *m;
#if PY3K
m = PyModule_Create(&moduledef);
#else
m = Py_InitModule3("_tri", NULL, NULL);
#endif
if (m == NULL) {
INITERROR;
}
if (!PyTriangulation_init_type(m, &PyTriangulationType)) {
INITERROR;
}
if (!PyTriContourGenerator_init_type(m, &PyTriContourGeneratorType)) {
INITERROR;
}
if (!PyTrapezoidMapTriFinder_init_type(m, &PyTrapezoidMapTriFinderType)) {
INITERROR;
}
import_array();
#if PY3K
return m;
#endif
}
} // extern "C"